/*
 * Copyright (C) 2006-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */

package org.alfresco.jlan.smb.dcerpc;

import java.util.*;

/**
 * Policy Handle Cache Class
 *
 * @author gkspencer
 */
public class PolicyHandleCache {

  //	Policy handles

  private Hashtable<String, PolicyHandle> m_cache;

  /**
   * Default constructor
   */
  public PolicyHandleCache() {
    m_cache = new Hashtable<String, PolicyHandle>();
  }

  /**
   * Return the number of handles in the cache
   *
   * @return int
   */
  public final int numberOfHandles() {
    return m_cache.size();
  }

  /**
   * Add a handle to the cache
   *
   * @param name String
   * @param handle PolicyHandle
   */
  public final void addHandle(String name, PolicyHandle handle) {
    m_cache.put(name, handle);
  }

  /**
   * Return the handle for the specified index
   *
   * @param index String
   * @return PolicyHandle
   */
  public final PolicyHandle findHandle(String index) {
    return m_cache.get(index);
  }

  /**
   * Delete a handle from the cache
   *
   * @param index String
   * @return PolicyHandle
   */
  public final PolicyHandle removeHandle(String index) {
    return m_cache.remove(index);
  }

  /**
   * Enumerate the handles in the cache
   *
   * @return Enumeration<PolicyHandle>
   */
  public final Enumeration<PolicyHandle> enumerateHandles() {
    return m_cache.elements();
  }

  /**
   * Clear all handles from the cache
   */
  public final void removeAllHandles() {
    m_cache.clear();
  }
}
